CH654536A5 - Anordnung zum erzeugen eines fluggeschwindigkeitssignals. - Google Patents
Anordnung zum erzeugen eines fluggeschwindigkeitssignals. Download PDFInfo
- Publication number
- CH654536A5 CH654536A5 CH4900/81A CH490081A CH654536A5 CH 654536 A5 CH654536 A5 CH 654536A5 CH 4900/81 A CH4900/81 A CH 4900/81A CH 490081 A CH490081 A CH 490081A CH 654536 A5 CH654536 A5 CH 654536A5
- Authority
- CH
- Switzerland
- Prior art keywords
- airspeed
- signal
- line
- pitch
- autopilot
- Prior art date
Links
- 230000006870 function Effects 0.000 description 47
- 238000012360 testing method Methods 0.000 description 42
- 230000007704 transition Effects 0.000 description 22
- 230000001133 acceleration Effects 0.000 description 19
- 238000004364 calculation method Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000009966 trimming Methods 0.000 description 6
- 230000010354 integration Effects 0.000 description 5
- 230000003321 amplification Effects 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000004590 computer program Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
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- 230000003111 delayed effect Effects 0.000 description 2
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- 230000000977 initiatory effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
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- 101100533615 Schizosaccharomyces pombe (strain 972 / ATCC 24843) end4 gene Proteins 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/0055—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots with safety arrangements
- G05D1/0061—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots with safety arrangements for transition from automatic pilot to manual pilot and vice versa
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/54—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
- B64C27/56—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement characterised by the control initiating means, e.g. manually actuated
- B64C27/57—Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement characterised by the control initiating means, e.g. manually actuated automatic or condition responsive, e.g. responsive to rotor speed, torque or thrust
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
- G01P5/16—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes, e.g. Machmeter
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/08—Control of attitude, i.e. control of roll, pitch, or yaw
- G05D1/0808—Control of attitude, i.e. control of roll, pitch, or yaw specially adapted for aircraft
- G05D1/0858—Control of attitude, i.e. control of roll, pitch, or yaw specially adapted for aircraft specially adapted for vertical take-off of aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
- Navigation (AREA)
- Toys (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/176,832 US4382283A (en) | 1980-08-08 | 1980-08-08 | Helicopter attitude and airspeed acquisition and retention system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH654536A5 true CH654536A5 (de) | 1986-02-28 |
Family
ID=22646030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH4900/81A CH654536A5 (de) | 1980-08-08 | 1981-07-29 | Anordnung zum erzeugen eines fluggeschwindigkeitssignals. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4382283A (fr) |
| JP (2) | JPS57104496A (fr) |
| AU (1) | AU539602B2 (fr) |
| CA (1) | CA1166720A (fr) |
| CH (1) | CH654536A5 (fr) |
| DE (1) | DE3129547C2 (fr) |
| ES (1) | ES504441A0 (fr) |
| FR (2) | FR2490843A1 (fr) |
| GB (1) | GB2081474B (fr) |
| IT (1) | IT1137837B (fr) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4385355A (en) * | 1981-03-30 | 1983-05-24 | United Technologies Corporation | Automatic outer loop centering of aircraft inner loop |
| US4477876A (en) * | 1981-03-30 | 1984-10-16 | United Technologies Corporation | Dual response aircraft reference synchronization |
| US4387432A (en) * | 1981-03-30 | 1983-06-07 | United Technologies Corporation | Pulsed aircraft actuator |
| US4460964A (en) * | 1981-08-31 | 1984-07-17 | Sperry Corporation | Multiaxis hardover protection apparatus for automatic flight control systems |
| US4481586A (en) * | 1982-03-09 | 1984-11-06 | Sperry Corporation | Adaptive washout circuit for use in a stability augmentation system |
| US4740899A (en) * | 1982-07-01 | 1988-04-26 | Rockwell International Corporation | Use of headwind and airspeed to achieve a transition to a hover in a helicopter or vtol aircraft |
| US4628455A (en) * | 1983-05-06 | 1986-12-09 | Sperry Corporation | Cross axis torque limiter for helicopter autopilot |
| US4580223A (en) * | 1983-11-07 | 1986-04-01 | United Technologies Corporation | Incorporation of pitch bias actuator function into an existing AFCS |
| US4645141A (en) * | 1984-05-23 | 1987-02-24 | Rockwell International Corporation | Automatic flight control system |
| US4763285A (en) * | 1985-10-04 | 1988-08-09 | Semco Instruments, Inc. | Helicopter low-g monitor, recorder and warning system |
| US5214596A (en) * | 1986-06-14 | 1993-05-25 | Duetsche Forchungs- Und Versuchsanstalt Fur Luft- Und Raumfahrt E.V. | System for determining the airspeed of helicopters |
| FR2613078B1 (fr) * | 1987-03-26 | 1990-12-28 | Crouzet Sa | Dispositif de mesure de la vitesse air d'un helicoptere |
| US5222691A (en) * | 1991-08-28 | 1993-06-29 | United Technologies Corporation | Automatic turn coordination trim control for rotary wing aircraft |
| US5238203A (en) * | 1991-08-28 | 1993-08-24 | United Technologies Corporation | High speed turn coordination for rotary wing aircraft |
| US5178307A (en) * | 1991-08-28 | 1993-01-12 | United Technologies Corporation | High speed yaw control system for rotary wing aircraft |
| US5213283A (en) * | 1991-08-28 | 1993-05-25 | United Technologies Corporation | Low speed turn coordination for rotary wing aircraft |
| EP0601000B1 (fr) * | 1991-08-28 | 1997-01-29 | United Technologies Corporation | Systeme de commande verticale pour aeronef a voilure tournante |
| US5310136A (en) * | 1992-05-19 | 1994-05-10 | United Technologies Corporation | Helicopter integrated fire and flight control having constraint limiting control |
| US5589749A (en) * | 1994-08-31 | 1996-12-31 | Honeywell Inc. | Closed loop control system and method using back EMF estimator |
| US5596499A (en) * | 1995-02-21 | 1997-01-21 | The Boeing Company | Control law mode switching between rate command and attitude command control systems |
| US7031811B2 (en) * | 2003-05-30 | 2006-04-18 | The Boeing Company | Fuel efficient airspeed trim |
| US7108232B2 (en) * | 2004-02-05 | 2006-09-19 | Hoh Roger H | Helicopter force-feel and stability augmentation system with parallel servo-actuator |
| US7970501B2 (en) * | 2005-03-08 | 2011-06-28 | Honeywell International Inc. | Methods and systems utilizing true airspeed to improve vertical velocity accuracy |
| US7433765B2 (en) * | 2005-05-03 | 2008-10-07 | Sikorsky Aircraft Corporation | Fly by wire static longitudinal stability compensator system |
| CA2974171C (fr) | 2011-07-15 | 2019-11-12 | Bell Helicopter Textron Inc. | Lois de commandes de vol pour maintien automatique en vol stationnaire |
| WO2016037035A1 (fr) * | 2014-09-04 | 2016-03-10 | Sikorsky Aircraft Corporation | Système d'estimation de la vitesse aérodynamique |
| WO2016178738A1 (fr) | 2015-05-05 | 2016-11-10 | Sikorsky Aircraft Corporation | Commande de priorité de maintien de position |
| DE102015118030B4 (de) * | 2015-10-22 | 2017-11-16 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Autopilot für atmosphärische Fluggeräte sowie Fluggerät und Verfahren zur Geschwindigkeitsregelung hierzu |
| US10101749B1 (en) * | 2017-03-21 | 2018-10-16 | Bell Helicopter Textron Inc. | Combined airspeed and inertial data for rotorcraft longitudinal control |
| US10816971B2 (en) * | 2018-02-12 | 2020-10-27 | Textron Innovations Inc. | Autopilot recoupling for rotorcraft |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5031870A (fr) * | 1973-07-20 | 1975-03-28 | ||
| US4129275A (en) * | 1974-11-22 | 1978-12-12 | The Boeing Company | Automatic flight control apparatus for aircraft |
| JPS5515359B2 (fr) * | 1974-11-22 | 1980-04-23 | ||
| IL51185A (en) * | 1976-02-03 | 1981-03-31 | United Technologies Corp | Method and apparatus for automatic aircraft heading control |
| US4003532A (en) * | 1976-03-15 | 1977-01-18 | United Technologies Corporation | Heading hold logic |
| US4079905A (en) * | 1977-02-07 | 1978-03-21 | Safe Flight Instrument Corporation | System for providing an indication of wind shear |
| US4095271A (en) * | 1977-04-20 | 1978-06-13 | Sundstrand Data Control, Inc. | Aircraft pitch attitude signal generator |
| US4168045A (en) * | 1978-02-28 | 1979-09-18 | United Technologies Corporation | Speed and collective pitch bias of helicopter longitudinal cyclic pitch |
| US4213584A (en) * | 1978-10-04 | 1980-07-22 | United Technologies Corporation | Helicopter hover stability and cruise gust effect alleviation |
| US4206891A (en) * | 1978-10-26 | 1980-06-10 | United Technologies Corporation | Helicopter pedal feel force proportional to side slip |
| US4300200A (en) * | 1978-12-01 | 1981-11-10 | Westland Aircraft Limited | Helicopter airspeed indicating system |
-
1980
- 1980-08-08 US US06/176,832 patent/US4382283A/en not_active Expired - Lifetime
-
1981
- 1981-07-08 GB GB8121053A patent/GB2081474B/en not_active Expired
- 1981-07-27 AU AU73469/81A patent/AU539602B2/en not_active Ceased
- 1981-07-27 DE DE3129547A patent/DE3129547C2/de not_active Expired - Fee Related
- 1981-07-29 CH CH4900/81A patent/CH654536A5/de not_active IP Right Cessation
- 1981-07-30 ES ES504441A patent/ES504441A0/es active Granted
- 1981-07-31 JP JP56120600A patent/JPS57104496A/ja active Granted
- 1981-08-07 IT IT23426/81A patent/IT1137837B/it active
- 1981-08-07 CA CA000383393A patent/CA1166720A/fr not_active Expired
- 1981-08-10 FR FR8115434A patent/FR2490843A1/fr active Granted
-
1982
- 1982-02-15 FR FR8202398A patent/FR2497955A1/fr active Granted
-
1990
- 1990-05-14 JP JP2123996A patent/JPH0769338B2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03143800A (ja) | 1991-06-19 |
| GB2081474A (en) | 1982-02-17 |
| JPH0769338B2 (ja) | 1995-07-26 |
| IT8123426A0 (it) | 1981-08-07 |
| GB2081474B (en) | 1984-10-10 |
| JPS57104496A (en) | 1982-06-29 |
| AU539602B2 (en) | 1984-10-04 |
| FR2490843B1 (fr) | 1984-12-21 |
| FR2490843A1 (fr) | 1982-03-26 |
| AU7346981A (en) | 1982-02-11 |
| FR2497955B1 (fr) | 1985-03-22 |
| ES8203757A1 (es) | 1982-05-01 |
| CA1166720A (fr) | 1984-05-01 |
| US4382283A (en) | 1983-05-03 |
| FR2497955A1 (fr) | 1982-07-16 |
| DE3129547C2 (de) | 1994-03-03 |
| DE3129547A1 (de) | 1982-05-19 |
| JPH0415160B2 (fr) | 1992-03-17 |
| IT1137837B (it) | 1986-09-10 |
| ES504441A0 (es) | 1982-05-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |